You cannot change the color of the X in the client, I assume it would be possible if you made the change in the code and compiled your own client, but that would technically be a modified client and might require permission.

I was planning to do a week of celebration with the day stones I had collected, but will no longer play and thus the event is cancelled.
I am selling the following day stones and will add some other items later. Make an offer here or send a mercator message. I will not sell to the highest bidder if I don't like the offer. This is not an auction. If you need something particular, send me a message and I might have it and be willing to sell. Do not expect a quick response, busy IRL.
2 Day of Alfred Nobel Stone
1 Day of Robin Tell Stone
3 Day of Magic Stone
1 Day of Schools Stone
2 Day of Non Stop Stone
2 Joules Stone
2 Day of Reconstruction
3 Day of Stakhanov Stone
2 Day of Faster respawns Stone
1 Day of Tailoring

I don't like the idea to make the route to Hydro pk. While it might solve some inequalities, it makes it even harder for non-top chars to try and do the harvest or Novac quest on this map. When the route was designed, it was hard, due to monsters and pk, but not undoable. You could ask for help from a fighter or just try and go at some unpopulated hour. After rule 5 was removed, it became all but undoable, except for a few people. This has caused much frustration, even from people who only need/want to go there once. Why not give these people a solution that allows them to do it, without a lot of changes that affect way more than just the regular harvesters. The snake tokens are a nice addition, but a bit steep for a char who wants to do it one time, since it adds up to about 27k gc at current prices, IF you can get them, which requires owning a bot.
I would like to refer to an earlier thread I made about hydro ring economics and suggest again to sell it in the shop, much easier solution and bound to bring in $$.
http://www.eternal-lands.com/forum/index.php?showtopic=60280&p=589309
Wont make it more attractive than buying bars from NPC, since the latter is still cheaper, so it won't break the economy.
With access to hydro, the economy might actually get a boost again, creating a market for s2e and ingredients

It is simply not economical; anyone who could survive the trip can get more value from killing monsters and collecting drops. Even harvesters that make the s2e from scratch and thus have 'free' swords can earn more by just selling the coal, fe and iron.
None of the new options have improved the economics, buying bars in Melinis is still more economical that any scheme of harvesting hydro ore yourself, except for muling on no drop day, then you just need infinite patience walking back from the UW.

Not sure how you can station alts at pear locations, since it can be pretty much any harvestible in any map. And no sure why would you station your alt at hydro, since the problem with hydro is the swords, not the char.
The other alts you mentioned, I don't have a problem with.
There are several maps with only a few harvestables, which are sometimes hard to get to. These maps are generally not checked with a pear finder but the few harvestables are simply harvested. I have seen alts log in in these maps in the past, when I was there to harvest at the start of the new day. I havent searched pears in a long time, maybe they stopped doing that.
With respect to harvestables. A char that can make the swords and harvest the ore needs several pickpoints in (harvest and manu) nexus, they will not be the strongest fighters, the fighters that can get to the hydro without much problem don't have the nexus to harvest, so they bring the swords and have an alt at the ore to harvest. This alt can go there on no drop or peace day, armed with a pickax. This is not hypothetical but is being done.